In PHP(Laravel), how to json_decode non-english language data, which is json_encode() with ‘JSON_UNESCAPED_UNICODE’? (It is to be exported in excel)

This is the code to export in Excel(SpreadSheet) in Laravel.

In PHP(Laravel), how to decode json for non-english language ,that is be exported in excel, which has been encoded with ‘JSON_UNESCAPED_UNICODE’?

This is the code to export in Excel(SpreadSheet) in Laravel.